Chair



FIG. 1 is a top view of the chair, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a bottom view thereof; and,

FIG. 4 is a perspective view thereof, as seen from above.

The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a chair, as shown and described. 